ADVERTISEMENT.

THE HE original intention of the following Sheets was merely to furnish a Text Book for part of the Author's Academical Course. During the execution of this Plan, he found reason to believe that a fhort Treatife, which fhould contain an Analysis of the Powers of the Human Understanding, tending to illustrate the Principles of found Reasoning, and scientific Investigation, might be a desirable acquifition to Students in general: because the Elementary Systems of Logic which have yet appeared, are almost all founded upon the metaphysical subtleties of the schoolmen; and have little reference to the prefent advanced state

of

of Intellectual Philofophy. Actuated by these confiderations, the Author prefumes to offer to the Public the following attempt to fupply a defideratum in Elementary Science; which may prove of fome use to the Student, till an abler hand fhall undertake the execution of the tafk.

1

CONTENTS.

INTRODUCTION

CHAP. I. Of Consciousness

CHAP. II. Of Senfation

SECT. I. General Remarks upon Senfation

SECT. II. Of the Primary and Secondary Qua-

lities of Body

CHAP. III. Of Perception

SECT. I. Theories concerning Perception

SECT. II. Of the Evidence of Perception, or

of the Senfes

p. 13

27

44

ibid.

54

69

ibid.

94

CHAP. IV. Of Abstraction

104

SECT. I. General Observations upon Abstrac-

tion

ibid.

SECT. II. Of the Nature and Origin of Abstract

and General Terms

118

SECT. III. Of the Ambiguity of General and

Abstract Terms

CHAP. V. Of Affociation, or Combination

142

169

SECT. I. General Remarks upon this Faculty ibid.

SECT. II. Of the Influence of Affociation on

our various Judgments

193

CHAP.

CHAP. VI. Of Conception and Imagination

p. 208

SECT. I. General Remarks upon Conception ibid.

SECT. II. Whether there is any Belief accom-

SECT. II. Of First Principles, or Intuitive

Truths

325

SECT. III. Claffification of First Principles,

349

SECT. IV. Of Definition, and the various Kinds

of Proof

385

APPENDIX

415

CHAP. I. Of Mathematical Reasoning

417

CHAP. II. Of the Induction of Physical Science

446

CHAP. III. Of the Induction of Metaphysics, and

other Sciences

477

ELE-